Ejector system



R. SUCZEK EJECTOR SYSTEM June 26, 192 3.,

Original Filed April 17. 1922 INVENTOR.

By M $4 55 5,;

34k ATTORNEY.

Patented June 26, 1923.

STATES ROBERT SUGZEK, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO (1., H. WHEELER MANUFACTURING COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORA- TION OF PENNSYLVANIA.

nmo'rort SYSTEM.

, Application filed April 17, 1922, Serial No. 553,573. Renewed May 9, 1923.

To aZZ toh-o m it may concern: v

Be 1t known that I, ROBERT SUozEK, a

citizen of the United States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented certain new and useful Improvements in Ejector Sys; tems, of which the following is a specification.

My invention relates to a system employin one or more ejectors or aspirators for raising the pressure of elastic fluid by'means of elasticmotive fluid, as steam.

In accordance with my invention, air, or equivalent, is raised in pressure by one or more ejectors Whose motive fluid is steam or equivalent, and the mixture of air and motive fluid is preferably delivered into a chamber,,such as a condenser, in which the motive fluid is condensed, the air being disvcharged to atmosphere or other region through a check valve which prevents equallzation of pressure between such region and the interior of the chamber. I

Further in accordance with my invention, a r is raised-in pressure by an ejector and discharged to atmosphere or other region through a passage controlled by a check valve which-prevents reverse flow of air to the ejector or region with which the suctio of the ejector is connected.

In accordance with my invention, air or equivalent is withdrawn from-a condenser in ,which there exists low absolute pressure and eventually discharged to atmosphere or other region through a passage controlled by a check valve preventing reverse flow of air,

such passage including, in some cases, a

chamber or condenser in which the ejector motlve steam iscondensed, as by condensate from the maincondenser. I

My invention resides in the features of construction and combination hereinafter described and claimed.

For an illustration of one forms my invention maytake, reference is to be had to the accompanying drawing,

Which" is an elevational view, some parts in section, illustrating apparatus or a system embodying my invention.

Referring to the. drawing, C is a condenser or any other vessel or chamber in which is to "be produced or maintained a vacuum or other desired pressure.

In the example illustrated, C is a surface condenser into which there is delivered of various densed steam or condensate collects in any I suitable receptacle, as the hot well From. anysuitable point withinthe steam space of the condenser C, as from below or behind the baflie b, connection is made with the suction chamber S of the ejector E having the difiuser or combining tube D and nozzle structure N to which is delivered through the pipe a. live or exhaust steam from any suitable source, or any other elastic motive fluid of suitable pressure; The mixture of motive fluid and air and other uncondensable gas or vapor withdrawn from the condenser C is discharged into thecondenser K, 'of any suitable type, here'1nd1- cated as a surface condenser whose cooling -water isthe condensate from the main condenser C withdrawn from the hot well H by the condensate-removal pump'P, driven by any suitable motor or turbine M, and de-' livered through the pipe d to the cooling water system of the condenser K, from which it is delivered through the pipe 6 into the chamber or condenser F, which is indicated as of the nature of a jet condenser in which the condensate-from the main condenser C is subdivided by a rose or equivalent device 7 and comes into contact with the mixture of air and steam or other motive fluid dis charged from a second stage ejector E which may be of the type illustrated in Let ters Patent of the United States No. 1,282,-

695, whose suction chamber communicates through piping B with the air and steam space of the condenser K, and whose aforesaid discharge is delivered to the chamber F through the pipe or conduit g. Motive steam for the nozzle structure of the ejector E is delivered at any suitable pressure from any suitable .source through the pipe h controlled by the valve The condensate resulting from the condensation of the motive fluid steam dis charged by the ejector E into the condenser K is delivered through the pipe jinto thereceptacle la in which is the valve m, controlled by the float n, controlling return of the condensate from chamber In to the hot well H, where it mixes with the condensate of the main condenser and ,is passed therewith'through the cooling system of the condenser K and delivered through the pipe 6 into thechamber F; The air passage 0' from the chamber F is controlled by the valve 2 loaded by the spring or equivalent and normally tending to c ose the passage 0. Leading to atmosphere or other region from the chamber above the check valve is the pipe i controlled by and adjustable valve 8.

The water in the tank F, consisting of the condensate from the maincondenser C and condenser K delivered through the pipe e and the condensate resulting from the condensation of the motive fluid of the ejector E is drawn off through the pipe t to any suitable destination, and in general, is utilized as the feed water for the boiler or steam generator supplying the steam to the engine or turbine which exhausts through the port A into the condenser C. In general, the water delivered through the pipe 25 passes to the boiler feed pump,- which then' delivers it to the boiler either directly or through heat exchange apparatus, as an economizer, for further raising its temperature. The pipe it may deliver to a feed wa-- ter heater, from which the heated water may.

then be delivered by the feed water pump to the boiler, an economizer also being employed, if desired.

The condensate from the .main condenser C is raised in temperature in the condenser K by the motive fluid steam from the ejector E, and it is. further raised in temperature by the motive fluid steam discharged by the ejector E into the chamber F.

In the air passage from the interior of thecondenser C to atmosphere or other region atthe discharge nd of the pipe 1, is located the check valve 1), which may be an ordinary check valve, for, as indicated, a check valve. loaded or biased by the spring '9, preventing air from passing backwardly through the pipe 9, ejector E condenser K, condenser E, to'the condenser C, to lower or break the vacuum therein.

The setting of the Valve 8 may be anything suitable or desirable, and may be such as to by itself, or assisted by the valve p, cause in the chamber F a" pressure above that of the atmosphere or other region at,

the discharge end of the pipe 1-. Furthermore, the valve ;0 may beso loaded that it of itself, or assisted by the valve 8, causes a higher pressure in the chamber F than atmospheric or the pressure of the region into which the pipe 1' discharges.

With such a pressure in the chamberF, as a super-atmospheric pressure, the temperature of the water therein may reach a higher magnitude without boiling or yaporization than in the case there existed in the chamber F- atmospheric pressure or a manually operable lower. The amount of heat delivered to the condensate from the condenser C by the motive fluid steam-from the ejectors E and E may be sufiicient to heat the condensate in the chamber F to such degree that the water may be delivered from the pipe .t directly to the boiler feed water pump without recourse to additional boiler feed water heating apparatus except, when desired, the economizer or equivalent located between the'boiler feed pump and the boiler.

It will be understood however, that my invention is not limited to super-atmospheric pressure in the chamber F, but that substantially atmospheric pressure or a pressure somewhat below atmospheric pressure may obtain in the chamber F; in any case, however, the check valve 10 prevents return of air into the chamber F and thence whether single or double stage, for any reason fails or diminishes in its efiectiveness in raising the pressure of the air withdrawn from the condenser C.

By the'operation of the ejectors, the va' ve ;0 may remain open substantially continuously, or it may close from time to time until accumulation of sufficientpressure in the chamber F to raise the valve p, whether loaded or not, to allow escape of air to the atmosphere or other region with which the pipe 1" communicates.

The valve p is preferably located, as indicated, beyond the chamber F. It will be understood, however, that it may be located between the discharge ofthe ejector E and the chamber F; between the dischar e of the ejector E and the suction of the e ector E or between the vessel C and the suction chamber 'of the ejector E.

What I claim is:

1. The combination with means forming a passage between regions having different pressures, of means for withdrawing elastic fluid from the region of lower pressure and discharging it at higher pressure comprising ejector apparatushaving a suction chamber, a difigiser-and nozzle structure, means for delivering elastic motive fluid to said passage.

' 2. he combination with means forming a passage between regions having different pressures, of means for withdrawing elastic fluid from the region of lower pressure and discharging it at higher ressure comprising ejector apparatus having a suction chamber, a diffuser and nozzle structure, means for delivering elastic motive fluid lto said" nozzle structure to effect. jet formation of said motive fluid for entraining thereby said first named elastic fluid in said suction chamber, said suction chamber communicating with and receiving elastic fluid from said region of lower pressure, said suction cham ber and diffuser included in said passage,

'and automatically operating valve structure on the discharge side of said ejector apparatus preventing reverse flow, of elastic fluid through said'passage.

3. The combination with a condenser, of e ector apparatus-for withdrawing elastic fluid therefrom and rasingit to'higher pressure comprising a suction chamber, a diffuser and nozzle structure, means for delivering elastic motive fluid to said nozzle structure to effect jet formation of said motive fluid for entraining thereby -said first named elastic fluid in said suction chamber. said suction chamber communicating with the vapor space of said condenser, and automatically operating valve structure preventing reverse flow of fluid througli'said ejector apparatus to said condenser. a

4:. The combination with a condenser, of means forming a passage therefrom to a region of higher pressure. ejector apparatus for withdrawing elastic fluid from said condenser and raising it to higher pressure comprising a suction chamber, nozzle structure and a diffuser means for delivering elastic motive fluid to said nozzle structure to effect jet formation of said motive fluid for entraining thereby said first named elastic fluid in said suction chamber, said suction chamber and diffuser included in said passage, and automatically operating valve structure allowing passage of elastic fluid. from said condenser and preventing reverse flow of fluid through said passage to said condenser. a

5. The combination with a condenser, of means forming a passage therefrom to a region of higher pressure, ejectorr apparatus for withdrawing elastic fluid from said confor determining thepressure at which said first named valve structure operates. 6. The combination with a condenser, of

means forming" a passage therefrom to atmosphere, e ector apparatus for withdrawing elastic fluid from said condenser and raising it to higher pressure comprising a suction chamber, nozzle structure and a diffuser, means for delivering elastic motive fluid to said nozzlestructure to effect jet formation of said motive fluid for entraining thereby said first named. elastic fluid in said suction chamber. said suction chamber and diffuser included in said passage, and automatically operating valve structure al-' lowingpassage. of elastic fluid from said condenser and preventing the reverse flow of fluid through said passage to said condenser, 7. The combination with a condenser, of means forming a passage therefrom to atmosphere, ejector apparatus in said passage for withdrawing uncondensable elastic-fluid from said condenser and raising it to higher pressure, automatically operating valve structure allowing; passage of elastic fluidfrom said condenser and preventing re verse flow of fluid through said passage to said condenser, and adjustable valve strut:- ture in said passage for determining the pressure at which said first named valve structure operates. i I 1 8. The combination with a condenser, of means forming a passage therefrom to a region 'of higher pressure, ejector apparatus in said passage for withdrawing uncondensable elastic fluid from said condenser and raising it to a pressure higher than atmospheric, and automatically operating valve structure allowing passage to atmosphere of said fluid of pressure higher than atmospheric pressure and preventingreverse flow of fluid through said passage to said con denser.

9. The combination with a condenser, of

means forming a passage therefrom to a region of higher pressure, ejector apparatus in said-passage for withdrawing uncondensable elastic fluid from said condenser and raising it to a pressure higher than atmospheric, automatically operating valve structure allowing passage to atmosphere of said fluid of pressure higher than atmospheric pressure and preventing reverse flow of fluid through said passageto said condenser,

and adjustable valve structure intervening between said automatically operating valve structure and the atmosphere.

10. The combination with a condenser, of ejector apparatus for withdrawing'elastic fluid therefrom ,and raising it to higher pressure comprising a suction chamber, nozzle structure and a diffuser, means for delivering elasticmotive fluid to said nozzle structure to effect 'jet formation of said motive fluid for entraining thereby said first named elastic fluid in said suction chamber and automatically go 'erating valve structure preventing reverse w of fluid through said ejector apparatus to said condenser and determining the back pressure against which said ejector apparatus operates.

11. The combination with means forming a passage between regions having different pressures, and means for withdrawing elastic fluid from the region of lower pressure and raising it to higher pressure comprising an ejector in 'said passage, a valve in said passage onthe discharge side of said ejector, and means for loading said valve to oppose its movement to position to open said passage. l

12. The combination with means forming a passage between regions having different pressures, and means for withdrawing elastic fluid from the region of lower pressure and raising it to higher pressure comprising and raising it to higher pressure comprising an ejector in said passage, an adjustable valve on the discharge side of said ejector, and an automatically operating loaded valve between said valve and the discharge side of said ejector preventing reverse flow of fluid through said passage. l

14. ;Thecombination with a condenser, of e ector apparatus for withdrawing uncondensable gas from said condenser and raising it to higher pressure, a chamberreceiving the discharge from said ejector apparatus, a discharge passage communicating with said chamber, and a valve allowing discharge of elastic fluid through said passage and preventing reverse flow through said passage into said chamber.

15. The combination with a condenser, of ejector apparatus for withdrawing uncondensable gas from said-condenser and raising it-tov higher pressure, a chamber receiving the discharge from said ejector ap paratus a' discharge passage communicatmg with said chamber, an adjustable valve in saidpassage, and a second valve in said passagebetween said chamber and said first named valve allowing discharge of elastic fluid from said chamber through said pas sage and preventing reverse flow of fluid through said passage to said chamber.

16. The combination with a condenser, of

ejector apparatus for withdrawing uncondensable gas from said condenser and raising it to higher pressure, a chamber receiving the discharge from said ejector apparatus, a discharge passage communicating with said chamber, a valve allowing dis- "charge of elastic fluid through said passage and preventing reverse flow through said passsageinto said chamber, and means for loading said valve to oppose its movement to ,open position.

17. The combination with a condenser, of ejector apparatus for withdrawing uncondensable gas fromsaid'condenser and raising it to higher pressure, achamber receiving the discharge from said ejector apparatus, a discharge passage communicating .01 steam-operated ejector apparatus for withdrawing uncondensable gas from said I condenser and raising it to ahigher pres sure, a chamber recelving the discharge from said ejector apparatus, means in said chamber for condensing the motive fluid of said ejector apparatus, a passage communicating with said chamber for discharging said gas therefrom, and a valve allowing discharge through said passage and preventing reverse flow through said passage I into said chamber.

19. The combination with a condenser, of steam-operated ejector apparatus for withdrawing uncondensable gas from said condenser and raisi-ng'it to higher pressure, a chamber receiving the discharge from said ejector apparatus, means in said chamber for condensing the motive fluid of said ejector apparatus, a passage communicating-with said chamber for discharging said gas therefrom, a valve allowing discharge through said passage and preventing reverse flow through said passage into said chamber, and means for loading said valve to oppose its movement to open position. i i

20. The combination with a condenser, of steam-operated ejector apparatus for with drawing uncondensable gas from said con denser and raising it to higher pressure, a chamber receiving the discharge from said ejector apparatus, means for delivering condensate-4mm said condenser into said chamber, a discharge passage communicating-with said chamber. and a valve allowing discharge, of elastic fluid through said passage and preventing reverse flow through said passage into said'chamber.

21. The. combination with a condenser, of steam-operated ejector apparatus for withdrawing uncondensablegas from said condenser and raismg it to higher pressure,

a chamber receiving the discharge from said ejector apparatus, means for del vering condensate from said condenser, into said chamber, a discharge passage communicating with said chamber, a valve allowing discharge of elastic fluid through said passage and preventing reverse flow through said passage into said chamber, and means for loading said valve to oppose its movement to open position.

22. The combination with a condenser, of

steam-operated ejector apparatus for withdrawing uncondensable gas from said condenser and raising it to higher pressure, a chamber receiving the discharge from said ejector apparatus, means for delivering condensate from'said condenser into said chamber for condensing the motive fluid -discharged by said ejector apparatus, a

passage for conducting said gas from said chamber, and a valve allowing discharge through said passage and preventing reverse flow through said passage into said chamber.

23. The combination with a condenser, of steam-operated ejector apparatus for w1th- ,drawing uncondensable gas from said condenser and raising it to higher pressure a chamber receiving. the discharge from sald ejector apparatus, means for delivering condensate from said condenser into said chamber for condensing the motive fluid discharged by said ejector apparatus, a passage for conducting said gas from said chamber, a valve allowing discharge through said passage and preventing reverse flow through said passage into said chamber, and means for loading said valve against movement to open position to effect a pressure in saidchamber higher than on the discharge side ofsaid valve.

24. The combination with a condenser, of

steam-operated ejector apparatus for withdrawing uncondensable gas from said condenser and raising it to higher pressure, a chamber receiving the discharge from said ejector apparatus, means for delivering condensate from said condenser into said chamber into direct contact with the steam discharged by-said ejector apparatus to condense said steam, a passage for conducting said gas from said chamber, and a valve allowing-discharge through said passage and preventing reverse flow through said passage into said chamber.

25. The combination with a condenser, of plural stage steam-actuated e ector apparatus comprising ejectors in series with each other for withdrawing uncondensable gas from said condenser and raising it'to higher pressure, a chamber into which one of said .ejectors discharges its motive fluid and said gas, a discharge passage communicating with sald chamber, a valve in said passage said ejector apparatus, and means for deliv-' ering condensate from said first named condenser through the cooling system of said interstage condenser and to said chamber for condensing the ejector motive fluid in said chamber.

26. The combination with a condenser, of plural stage steam-actuated ejector apparatus comprising ejectors in series With each other for withdrawing uncondensabl gas from said condenser and raising it to higher pressure, a chamber into which one of said ejectors discharges its motive fluid and said gas, a discharge passage communicating with said chamber, a valve in said passage allowing discharge of elastic fluid therethrough and preventing reverse flow of fluid to said chamber, an interstage condenser for said ejector apparatus, means for delivering condensate from said first named condenser through the cooling system of said interstage condenser and to said chamber for condensing the ejector motive fluid in said chamber, and means for loading said valve to produce in said chamber a pressure for causing the condensate in said chamber to attain a correspondingly increased temperature. I

27 The combination with a condenser, of steam-operated ejector apparatus for withdrawing uncondznsable gas from said'condenser and raising it to higher pressure, a chamber receiving the discharge from said ejector apparatus, means for deliveringcondensate from said condenser into said cham. ber into direct contact with the ejector motive fluid to condense said motive fluid and raise the temperature of said condensate, a passage for discharging said gas from said chamber to atmosphere, a valve in said passage permitting discharge through said passage and preventing reverse flow of fluid through said passage to said chamber, and means for loading said valve to cause in said chamber a pressure above atmospheric pressure.

28. The cpinbination ploying elastic motive fluid for raising the with an ejector empressure of elastic fluid, of means receiving the discharge trom said ejector for condensing a condensable component of said dis-' ROBERT SUCZEK. 

